The spectra of 18 of the 20 newly discovered dLHdC stars were taken with the Triplespec spectrograph ([1]}, R \(\approx \)  3000) on the 200-inch Hale telescope at Palomar observatory on several nights between June and October 2021. Two newly discovered dLHdC star (A166 and A183) were observed with the SpeX spectrograph (R \(\approx \)  2500) on the 3 m NASA Infrared Telescope Facility (IRTF, [2]}) on UT 20210623. We include a previously unpublished spectrum of the previously known dLHdC star HD 137613 taken with the UKIRT Imager Spectrometer (UIST, [3]}, R\(\approx \) 3100) on the 3.8 m United Kingdom Infrared Telescope (UKIRT) on UT 20050309. We also include spectra of 3 other previously known dLHdC stars obtained with the Gemini Near-infrared Spectrograph (GNIRS, [4]}) on the 8.1 m Gemini-South telescope in the long-slit mode with R \(\approx 5900\)  in 2005, reported by [5]}.
